Post-anchor socket



W. MITCHELL POST ANCHOR SOCKET Dec. 2s, 1926.

Filed May 25, 1925 INVENToR.

Milka/M, WM

MIM?

A TTORNEYS,

Patented Dec. 28,' I1926.

UNITED lSTATES vrxrizrrr OFFICE.

WILLIAM MITCHELL, OF MILWAUKEE, WISCONSIN, ASSIGNOR TO .MITCHELL MANU- lFACTURING COMPANY, OF MILWAUKEE,'WISCONSIN, A CORPORATION OF WIS-coysiu. v

POST-ANCHOR SOCKET. Application led Hay 25, 1925. Serial No. 32,682.

which is particularly applicable to stanchion and stall partition postsbut which may be used for posts of all kinds.

A further object of the invention is to provide a post anchor sockethaving an o1l pocket or reservoir to prevent the formation of rustbetween the lower end of the post nd the interior of the socket, andalso prelent rusting of the set screw used to bind che post, theconstruction being such that provision is made not only for initiallyfilling the reservoir with oil before the adjustment of the post to thesocket, but also the -construction is such that the oil in the reservoirmay be readily replenished as the original supply becomes exhausted, andafter all the parts have been assembled and in adjusted position.

A further object of the invention is to provide a post anchor socketwhich is of very simple construction, is inexpensive to manufacture, isstrong and durable, and iS well adapted for the purpose described.

With the above and other objects in view the invention consists of theimproved post anchor socket, and its parts and combinations as set forthin the claims, and all equivalents thereof.

ln the accompanying drawing in which the same reference charactersindicate the same parts in all of the views:

Fig. l is a side view of the improved socket anchored in a base andengaging a post, part of the socket being broken away and shown insection;

Fig. 2 is a cross sectional view line 2 2 of Fig. l; and

Fig. 3 is a cross sectional view taken on line 3 3 of lFig. l.

Referring now more particularly to the drawing, it will be seen that theimproved post anchor socket is designated by the numeral 5. The deviceis formed with an upper hollow socket portion 6 and a lower anchoringportion 7 As shown in Figs. l and 3, the anchoring portion 7 is providedwith a circular bottom taken on or base 8 and radial, inwardly curvedfins 9- and when the socket is embedded in a base or support 10,preferably ofconcrete or the like, the bottom 8 will prevent upward withslight play of the drawal of the socket and the fins 9 will preventrotation.

The inner walls of the socket portion 6 are preferably curved outwardlyslightly so that the socket will have a smaller inner circum-` ferenceat the top and bottom than at the intermediate portions, thecircumference of the intermediate portions of the socket thereby beingslightly greater than that of a post 11 engaged by the socket, thusforming an annular oil pocket or reservoir 14 which will prevent theformation of rust on the Socket walls and post and also on a set screw12 threaded through the wall of the socket portion.

Although the socket has been shown with its inner surface curved, saidcurved surface is not absolutely essential to the formation of an .oilreservoir, inasmuch as the bore of the socket can be enlarged withoutthe curve formation of the inner surface thereof. In practice, thesocket is filled with oil, and the post is then inserted into the socketand the oil will fill the interior of the lower portion of the hollowpost and also cover its, outer surface. ln this way, rust is preventedfrom forming both on the outer and inner surfaces of the lower portionof the post. lft will be noticed that the opening at the upper end ofthe socket is sufficiently greater in diameter than the post to providefor a post. It therefore follows that when the set screw 12 istightened, the post will be forced slightly against one side of thesocket, leaving a small space for the introduction of oil, to therebymake it possible to replenish from time to time the oil originallyintroduced in the reservoir, as said oil becomes exhausted.

lt will be further noticed that the upper edge of the opening at theupper end of the socket is rounded, so as to form a funnelshaped mouthfor the introduction of replenishing oil.

An annular outer flange 13 formed on the medial part of the socketportion engages the upper surface of the base or support 10 and preventsfurther depression of the socket and post held thereby.

ao y

. set forth. It will be further observed that the simplicity of thedevice resides particu- L larly in the fact that alll the parts thereof,with the exception of the set screw 12, are integrally formed that is tosay, the upper socket portion, the, lower anchor portion withv itscircular base 8, the'curved fins 9, and the intermediate flange 13 areall in one piece or casting.

What I claim as my ilventions:

1. The combination with a post socket,

consisting of a member having aloweranchoring portion, and an uppersocket portion, the bore of the socket being enlarged between its lowerclosed end and its upper open end or mouth, the enlargement forming areservoir for the reception of oil, of a post adapted to be insertedinto the oil filled reservoir of the socket member, the said post beingof suiciently less diameter than the upper end or mouth of the socketmember to provide for a slight play of the post, and a set screw passingthrough the wall of the socket member, and engageable at its inner endagainst the post, to thereby removably hold the post Within thereservoir of the socket member and to also tilt the post slightly so asto leave a space at the upper open end or mouth of the socket member forthe passage of oil therethrou l1 to replenish the supply of oil originaly placed in the reservoir.

2. The combination with a. post socket, consisting of atmember having alower anchoring portion vand an upper Socket portion, the bore of thesocket being engaged between its lower clo:ed end and its upper open endor mouth, forming a reservoir for the reception of oil, of a postadapted to be inserted into the oil filled reservoir of the socketmember, the post being of sufiiciently less diameter than the upper openend of the socket member to provide for slight play of the post, and theedge of the .upper opening of the socket member being rounded to form afunnel-shaped mouth, and a set screw passing through the Wall of thesocket member and engageable at its inner end against the post, tothereby removably hold the post within the reservoir of the socketmember, and to also tilt the post slightly so as to leave a space at theupper open end or .mouth of the socket for the passa e of oiltherethrough to replenish the supp y of oil originally placed in thereservoir.

In testimony whereof, I atix my signature.

WILLIAM MITCHELL.

